Door fastener



G. J. AYRES DOOR FASTBNER May 20 924.

Filed June 30. 1922 Patented May 2Q, 1924.

GEQRGE J. AYERS, OF NEW YORK, N. Y.

DOOR FASTENEB.

Application filed June 36, 1922.

To all whom it may concern:

Be it known that I, Gnoucn J. Arms, citizen of the United States,residing at New York city, State of New York, have invented certain newand useful Improvements in Door Fasteners, of which the fol lowing is aspecification.

This invention relates to an improved door fastener and seeks, as one ofits prin cipal objects, to provide a fastener which will permit a doorto be partly opened while, at the same time, the fastener will preventthe door from being fully opened.

The invention has as a further object to provide a fastener which mayalso function for locking the door closed and wherein shaking orrattling of the door cannot serve to release the locking dog employed.

And the invention has as a still further object to provide a fastenerwhich may be adjusted to suit the mounting of different doors.

Other and incidental objects will appear hereinafter.

In the drawing:

Figure 1 is a perspective view showing my improved fastener applied.

Figure 2 is an enlarged sectional view showing the manner in which thefastener is locked for securing a door closed and illustrating, indotted lines, the manner in which the fastener may permit the door to bepartially opened,

Figure 3 is a detail sectional View through the base plate of thedevice,

Figure 4 is perspective view showing the base plate in detail, and

Figure 5 is a detail perspective view of the door plate of the device,this view also showing the free end of one of the arms of the fastener.

Referring now more particularly to the drawing, 1 have conventionallyillustrated a door at and a door jamb at 11. In carrying the inventioninto effect, I employ a base plate 12 which, as shown in Figures 1 and2, is screwed to the door jamb, and rising from the base plate areparallel longitudinally directed flanges l3. Pivoted at one end betweensaid flanges is an arm 14 and pivoted upon the opposite end of said armis a coacting arm indicated as a whole at 15. This latter arm is, asbest seen in Figure 2, formed of telescopic sections 16 and 17, thesection 17 being provided with a barrel slidably receiving the section16 there- Serial No. 571,877.

in and threaded through the wall of said barrel is a set screw 18securing the sections together. At its outer end the section 17 isprovided with a flattened offset shank 19 on which is formed a toe 20preferably elliptical in cross section, the toe being disposedtransversely of the shank and at its ends, overhanging the shank. Formedin one end of the base plate 12 between the flanges 13 is an opening 21and riveted or otherwise secured at one end to said plate is a flatspring 22, the free end of which overhangs said opening. Pivoted at itsinner end between the adjacent ends of said flanges is a locking dog 28rounded at its adjacent terminal, as best shown in Figure 3, to coactwith the free end of said spring and formed in the outer side edge ofthe arm 14 is a notch 2i to receive the free end of the dog. Screwedupon the door 10 near the outer vertical edge thereof is a door plate 25from one end of which rise parallel eyes or loops 26 and formed in theconfronting edges of said loops at the upper end of the plate arehorizontally disposed slots 27 adapted to freely 4 receive the toe 20 ofthe arm 15 therethrough to engage within the loops.

As will now be seen in view of the preceding description, when the arm15 is engaged with the door plate 25, as best shown in Figure 2, the dog23 may, as illustrated in dotted lines, be swung to inactive positionwhen the door may, as also shown in dotted lines, be partially opened.At the same time, the device will serve to prevent the door from beingfully opened. However, should it be desired to lock the door closed, thedog 23 is swung to engage at its free end in the notch 24. of the arm li when the dog will function to prevent pivotal movement of the arm sothat the device will thus form a rigid, structure extending between thedoor and door jamb blocking opening movement of the door. The spring 22will, of course, frictionally coact with the dog for holding the dogengaged with the arm and, in this connection, particular attention isdirected to the fact that the dog lies in the path of travel of the armwhen. the door is opened. Accordingly rattling, shaking or pushing uponthe door can only serve to advance the arm into tighter engagement withthe dog. Accordingly, such rattling, shaking or pushing upon the doorcannot serve to dislocate or release the dog to permitthe door to bepartially opened. The device will thus provide an effective and securelock for the door. To release the door, the dog is swung to inactiveposition when the arm 15 is grasped and shifted to ride the toe 20through the slots 20 out of engagement with the loopsQG oi the doorplate when the arm 15 as well as the arm 11 111215 be swung to one sideupon the base plate 12. In some instances, a door does not, when closed,rest tlush with the door jainb and for this reason, the arm 15 of thedevice is adjustable in length to meet such a condition so that, as willbe seen, the device is accordingly well adapted for a wide range of use.

Having thus described the invention, what is claimed as new is:

1. A door fastener including a base plate, a door plate, pivotallyconnected arms one swingingl mounted upon the base plate and the otherengageable with the door plate, one of said arms being formed ofsections and one or" said sections being provided with a barrel slidablyreceiving the other section of the arm, and means upon the barrel.adjustably connecting the sections.

2. In a door fastener, the combination with a base plate forattachmentto a door jamb, a door plate for attachment to a door, andhingedly connected arms one swingingly mounted upon said base plate andthe other engageable with the door plate, said first mentioned arm beingprovided at its rear edge with a notch, of a dog pivotally mounted atone end upon the base plate in the path of travel of said firstmentioned arm when the door is opened and engageable at its opposite endin said notch blocking movement of said first mentioned arm to- Ward thedog whereby pressure applied against the door for opening the door willtend to compress the dog.

In testimony whereof I attix my signature.

GEORGE J. AYRES. [n s]

